2" Round Horizontal/Vertical Mount Fire Damper 2550-20 Residential Registers & Grilles Square collar designed for a

Square collar designed for a 20” × 20”

* Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Driftwood Tan Options * TD Series - with damper

with 75% free area Options 14 GA 304 SS Construction 12 GA (

Nylon bushings on adj

450 Series Engineering/Performance Data

2" Round Horizontal/Vertical Mount Fire Damper 2550-20 Residential Registers & Grilles Square collar designed for aStandard Features Spring actuated curtain type fire damper with 2 1 4" round connection for horizontal or vertical mount 2" thin line roll formed out of airstream frame Designed for use in walls, floors and partitions with fire resistance ratings of 2 hours or less (for ceiling application, see 2700 series) UL listed and tested in accordance with UL Standard 555 1 1 2 hour fire resistance rating Building materials rated 2 hours or less CSFM California